radiolaria - rads_cenozoic - Siphocampe acephala

Siphocampe acephala


Classification: rads_cenozoic -> Artostrobiidae -> Siphocampe -> Siphocampe acephala
Sister taxa: S. acephala, S. altamontensis, S. arachnea, S. bassilis, S. daseia, S. elizabethae, S. grantmackiei, S. imbricata, S. lineata, S. minuta, S. modeloensis, S. nodosaria, S. pachyderma, S. quadrata, S. septata, S. stathmeporoides, S. sp.

Taxonomy

Citation: Siphocampe acephala (Ehrenberg 1875)
Rank: species
Taxonomic discussion: (Ehrenberg) 1875; Nigrini 1977; Takemura 1992 (ODP 122 SR) pl 6 fig 9

Catalog entries: Eucyrtidium acephalum

Original description: [Cylindrical, the apex rounded and rather 225 narrower; the segments (10, including the frontal one) very slightly constricted, narrow, flat, with approximately 11 - 12 conspicuous (opposite), parallel longitudinal lines in each segment. Length 125 µ, maximum breadth 49 µ. (Translated from Latin by E.M.R. and W.R.R.)]

Description


Morphology:


Size:

Biogeography and Palaeobiology


Similar species: acephala

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Paleogene Period (23.03-66.04Ma, top in Chattian stage). Data source: Lazarus et al. 2015 - "P age group"
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Lazarus et al. 2015 - "P age group"

Plot of occurrence data:

References:

Ehrenberg, C. G. (1876). Forsetzung der Mikrogeologischen Studien als Gesammt Ubersicht der mikroskopischen Palaontologie gleichartig analysierter Gebiegsarten der Erde, mit specieller Rucksicht aus den Polycystinen Mergel von Barbados. Abhandlungen der Koniglichen Akademie der Wissenschaften zu Berlin. 1875: 1-226. gs

Nigrini, C. A. (1977). Tropical Cenozoic Artostrobiidae (Radiolaria). Micropaleontology. 23(3): 241-269. gs

Takemura, A. (1992). Radiolarian Paleogene biostratigraphy in the southern Indian Ocean, Leg 120. Proceedings of the Ocean Drilling Program, Scientific Results. 120: 735-756. gs


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Siphocampe acephala compiled by the radiolaria@mikrotax project team viewed: 30-9-2022

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